Cotton-gin.



R. B. LUMPKIN.

COTTON GIN.. APPLI'oAnon FILED Hov.12,19o6.

Patented Jan 26, 1909.

2 SHEETS-SHBBT l.

nN\ Il E. B. LUMPKIN.

COTTON GIN.

APPLICATION FILED Nov.12,1906.

Patentea Jan. 26, 1909.

UNITED sTATns PATENT onnren.

ROBERT B.' LUMPKIN, OF v''1)A'14`1LAS, rTEXAS,'ASSTGO'R TO AIR BLAST GINCOMPANY, OF

DALLAS,`TEXA'S, A CORPORATION OF TXS.

'Specication of'Lette'zs'Patent.

COTTON-GIN intentes cannes, isos.

Application 'ledlNovexnber 12, 1906. Serial 110.3431193.

.Toall 'whom it may concern:

Be it lknown that I, 'ROBERT B. LUMPKIN, a citizen of the United'States, residing at Dallas, in the county of Dallas'and State of TeXas,havev invented -Sa new and useful Cotton-Gin, of which the following isfa specification.

This invention relates to cotton gins -of that character in which vairblasts are utilized l0 for disc argmg it into the lint lues.

It is old in this art to dispose a plurality of saws adjacent a lintreceiving -flue and to discharge air under pressure l:tor the purpose ofstripping the cotton from the saws and -directing it into the ilu'es. Ithas xbeen found however thatl-the tendency-of the air assoon asdischarged is to cling against :that -wall of the iiue farthest removediromthe saws, this action of the air current resulting from the factthat the current is subjected to an unequal at- Inos hericf pressure. Asa result only a very smallpart of the air current acts upon the saws andtherefore the eciency of the apparatus is greatly reduced.

It 1s the object koi" the present invention to avoid this objectionablefeature by. interosing a deilector designed to positively'deect acurrent oi air from the outlet toward the saw so ,that ,the tendency ofthe air current to hug the wall of the iiue will be suficiently overcometo enable the-cotton to be leiiectively strippedpneumatically as thesaws reta-te.

Anotherobject is to provide a :battery oi' oppositely disposed gi-.nsydesigned to discarge stripped cotton intova common flue, the gang oisaws in each gin being -suplied with -air'irom a common iue inter-posebe- 40 tween the gins. Space is thus econo-mined and less timevisconsunied in feedinglthe gins than where all of the gins Aof a batteryare dis osed in alinement, as heretofore.

' riththese and other-objects in vieja/fthel i415 invention consists ofcertain novel features of construction and combinations of parts `whichvwillbe hereinafter more fully dee scribed and pointed l'out the claims;

1n the accompanying drawings shown the preieriedform vof the invention.

In said ldrawings:. Figure 1 is aview partly in .end elevation andpartly rin section of a. battery of gins. yconstructed in accordancehisvinventio'n, the breast vof one Aof the for stri ping cotton from thegin saws and thereof.

position Fig. 2 is a plan view of the machine,

lthe breasts of two of the Vgins being .shown lowered; and Fig. .3 is anenlarged'detail showing .the positions assumed by the '60.

lteeth when in 4the line of the blast.

Referring to the figures by characters-of reference, 1 .isan archedframe havingfan box or rece tacle 2 arranged longitudinally thereon attlhe center and shafts 3 and 4 fare journaled upon the frame 'atopposite sideslof ooduct' or flue which extends throughout the lengthoi' saws and opens into the up er portion of .a large lint ue 11arranged eneath the frame 1 and extending from end yto vend The duct Vor`flue .10 has its outer Wall`12 shorter than its inner wall 13 and themoteboard 14 upon the Wall '1.2 is vdisposed very close to theer'ipheries of the .saws 9. The upper end of t e Wall 13' is fastened toa strip 15 having a beveled face 16 which rests veryclose to theperipheries-of the saws, said .face preferably alinlng' with the Wall13. This stripV 15 constitutes Ithe bottom-of anair outlet chute 17, thetop'of Which consistsof a between the peripheries :oi thesaWs y'and the'beveled face .16. As a result of this oonstructionand arran ement ablast-of eind-is# charged 'from the c =ute 17 will be directed acrossthe sawslas indicated by the arrows,

thegreatest compression of `air about the saw teeth taking place just asthe teeth pass the lower edge of the beveled .face16, .thereby strippingthe cotton fromgsaid teeth and absolutely reventing any portionof the'cotton from ma ing a complete 4revolution' with the saws..

A rod 19 issecured Within each side of the swing into position over thetwo sets of saws 9.' Each of thesebreasts carries a grate 2i,

a feed hopper'22 and in each side `an antifrib- .tion disk.' 23 of theusual type. Suitable ing shownby dotted lines liowerfedr 1 lockingmeans-such as a sliding Ibolt 24 Amay 110 be lused for locking eachofthe breasts in raised position and each bolt is adapted to be' vactuated by a lever at the end of the gin.-

; As ha's heretofore been intimated the tend.

-upper portion of the current from the atmoseric pressure and thereforecom elsthe `current to travel along said flue wa It is old in this artto utilize a current of air-for the express urpose of strip ing-cot- A'ton-from the saws ut it has been ound in- @E l flowing the direction ofthe outlet moves variably that `the air current' instead otfolbackwardaway from the saws and follows that wall of the-machine extending fromthe outlet. As a result the current o'f air is drawn away from the ginsand its efficiency The de asa strpping medium is practically nullified.

ecting strip l5 has been provided by 'me for the purpose ofovercominithis objecvtionable -feature. 4B'yplacing t s stri at as'.

the inner edge of the outlet'opening an by providing the beveled face 16the air current as soon as discharged from the outlet chute isprojec'ted'against this beveled faceand deflected against the teeth ofthe saws and strips the cotton therefrom as they are successivelybrought into position at the lower 'edge of said beveled face. When eachtooth assumes this position the current of air erates to strip thecotton therefrom in direction of the longitudinal center of the toothbecause the'strippin takes place at the point where the deiiecte air isdriven inward against the concave wall of the iiue. The cotton strippedfrom the teeth in this manner is blown downward into the flue 10 andinto a large receiving iue I1 and the same air. current carries the lintfrom the liue 11 to the condenser, not shown.` By provid,-

ing a battery of oppositely disposed gins aconsiderable savingV of timeand space results because the entire machine can be placed within asmaller area than could four separate gins. Moreover, it is much easierto feed the cottonto a battery of gins such as herein described than toseparate therefore considerable time and abor is saved by means of thisapparatus. By positioning the air box between the two o posed sets ogins the. air can be discharge from said box in o posite directions tothe respective gins andlby arranging the lint receiver or flue 11 belowand between the two sets of gins the same current of air which isdischarged from the air box 2 i-s sufficient to direct the stripped lintor cotton downward gang ofsaws, a lint receiver, and a flue exs and` thesaws; of means for directing air under pressure into the flue and closeto the saws,

' and a deilector interposed between said means and the flue fordirectin the air gainst the saws prior to its admisslon to the 3. In acotton gin the combination with a plurality of saws; of a lint fluedisposed adjacent to and adapted to receive lint from the saws, meansfor directing a blast of air into the flue and adjacent said saws, .anda de- 4iiecting strip interposed between said means and the flue fordirecting the blast longitudinally of the saw teeth as they successivelypass said strip.

4. In a cotton in the combination with a gang of saws, an a fluedisposed to receive lint from the saws; of an air feed disposed todirect an air blast above the saws and into .the liuc, and meansinterposed between the feed chute and the flue for delecting the blasttoward the saws prior to its passage into the flue. v

5. In a cotton (gin the combination with a ang of saws, an a iluedisposed to receive lint therefrom; of a del'lecting strip disposed atthe upper end of the ilue, and an air feed chutel extending over saidstrip and saws for directing a blast of air against the deflecting ltripprior to the passage of said air into the ue. v

6. In a cotton gin'the combination with a gang of saws, a receiver, andan airbox; of a lint flue extending from' the saws and opening into thereceiver, an air feeding chute extendin from the air box and above 'theflue, and a electing strip interposed between said chute and the flueand directing an air blast toward the saws prior to the passage of airinto the liuc.

7. The combination with oppositely disi posed similar cotton gins, and agang of saws mcluded in each gin; of an air box, inter osed between thegins and disposed to irect blasts of air in opposite directions againstthe saws of the respective ins, a receiving lliuc interposed between anbelow the gins, lint lues extending therefrom to the respective gins,and means connected to each lint :Elue for deflecting blasts of airagainst thesaws prior to their movement into the lint flue:

8. In a cotton gin the combination with gin saws arid means for feedincotton thereto; ofa lint receptacle below't e saws, a fiue for directinglint from the saws and into the receptacle, an air box, a beveled crossstrip siey saws, a feeding chuteextending vfrom tile air box and abovethe cross strip, said chute be ing disposed to direct air tangentialiythe lang of saws and under the cross strip to strip int from the saws'and,direct it into the dues.

9. vIn a cottonv g1n, a -gin saw7 a nozzle noztie at theopenin'gf'thereoi, said plate beA adapted to direct van-air blast fromsaid noz 2de against said saw.

10.- ina cotton gin providfd with a gang of saws and a flue alspesedrre'eeive lint therefrom; an air feed fordiree'ti'rr Y air vclose to thesaws and inf'a direction parat lel to a plane tangent to theperipheri'es of the saws and a dedector disposed. et an angieto the athof the blast o-air for concentrating the last offairin the paths of thesaw teetli and in tiie direction of the rotation of the saw teetiifordriving the lint therefrom into said u e .Y '1" in a cottonginprovidedw'itna gang er saws and a'iiue disposed -tc receive linttuererom'; vanair biast pipe,an air feeding hilte for directing airtherefrom eiose to disaws, and means between said fine and chuteforcausmg the air'to strike the teeth `blast of' s chute coperating withsaid` air feeding ofthe saws and to driife the lint therefrom' intosaidlint flue. i 12. Ina cotton ginprovided with a gang of saws and a iiuedas osed to, receivelint therefrom; meaesfor' irecting'air close to saidlsaws and a deiector (3o-extensive with the gang of saws and having itsdeecting surface. commencing at Athe termination of 40 the'air-directing means and set at an angie to the air-passagefo'rconcentrating air pressure in the ath of they saw-teeth and in the i`direction oi the rotation of. the'saiirteetii` vprior to its passageinto said fiile'.

13. In acotton gin the combinationwitli a gang of saws, and a-iiue disosed to receive lint from the saws; of an air eed disposedv to direct anair" blast past the'saWs-and into the lue and ineens interposed betweenthe feed oatnof the' 1elast of air for disposed at vas.'

concentrating the 'elast of air'the paths the saw'teetii 'ier drivingtile-lint thereironi into said dus.

i5. .in @etten gin provided wit??L sian of saws and. a Sue disposedtorece-i therefrom; air ieed cri-extensive with the width of the of sawsfor directing blast oi air close to and tangentiaily to tne periph---eries oi the saws and a de'riector between the airaiee'd and the iluecri-extensive with said air feed and disposed at an angle to and in the'ath of the blast of air for concentraties tiie Jia-stof air in thepaths ci tiie 'w tee for driving the iint-tliereircrn into said ue. iti.in a cotton gin provided with a gang oi saws and a lue disposed vtoreceive iint therefrom; an air feed adjacent to and co-ex 'tensive withsaid gang of saws for directinga sast ci air close to and tangentiailyto saidY gang of lsaws and a deilector coextensive with and commencingat `the termination oi said air feed and ldisposed at an angle to and inthe path oi the biast of air for concentrating the blast @fair in thepaths 'of the saw teeth to drive the lint therefrom into said dum i7. ina cotton gin, a gin saw, a nossie mounted adjacent to said saw andhaving 'an opening discharging the direction of the rotation yoi saidsaw, and a plate mounted at the termination ci said nozzle andadapted tointercept air issuing from said nozzie and i Roer. e. LUMPKIN. Y

Witnesses i. S'Aeo'n. J. B. Hermine. i

claim the foregoing as

